Ro-tary Cutter Flex Coupler Rubber Disc Kit - By Ohoho - Compatible With Rhino Bush Hog Hardee 00762215 0076647A 00771287 00749172 68-109-4(Set Of 4)

What It Is

This is a set of four rubber flex coupler discs that connect the gearbox output shaft to the cutter blade spindle on rotary cutters (brush hogs). They absorb shock and allow slight misalignment, preventing driveline damage when cutting heavy vegetation.

Fitment & Compatibility

Check these before buying:

• OEM cross-reference: Fits Rhino, Bush Hog, Hardee models using part numbers 00762215, 0076647A, 00771287, 00749172, and 68-109-4.
• Physical check: Measure your existing coupler’s diameter (typically ~3.5–4.5 inches) and bolt hole pattern (usually 4 holes on a 2.5–3 inch bolt circle). This kit is a 4-disc set, so confirm your cutter uses four stacked discs.
• Deck size: Common on 5–8 foot rotary cutters, but verify your specific model’s parts diagram.
• Aftermarket note: This is an Ohoho aftermarket kit. It may vary slightly from OEM in rubber durometer or disc thickness—measure old vs. new disc thickness before reassembly.

Key Things to Know

• Installation: Moderate difficulty. Requires removing the blade, gearbox, and old discs. A puller may be needed if discs are seized.
• Durability: Rubber discs wear faster than steel alternatives but are cheaper to replace and gentler on gearbox bearings. Expect 1–3 seasons in heavy use.
• Common gotcha: Do not overtighten the center bolt—it compresses the rubber and reduces shock absorption. Torque to manufacturer spec (typically 80–120 ft-lbs).
• Alignment: If the old coupler failed due to misalignment, check the gearbox and spindle shaft alignment before installing new discs.

Should You Buy It

Buy this if you own a Rhino, Bush Hog, or Hardee rotary cutter with a worn or broken rubber coupler and want an affordable, direct-fit replacement kit. It’s a solid value for DIY maintenance, but if you need maximum durability in rocky or extreme conditions, consider a steel coupler upgrade.